PRESENTING RESULTS FOR GROUP G5Group Members : Caban, Urazov, Knight Group:
Final Results ( PREFER SIZES of about 800x600 )Please see G5-Final: http://swiki.cc.gatech.edu:8080/cp2005/107What IMAGES were used ( PREFER SIZES of about 400x300)Please see G5-Final: http://swiki.cc.gatech.edu:8080/cp2005/107DESCRIPTIONWhat were the goals?The primary goal was to trick the viewers of our pictures into seeing something that wasn't really there. This was accomplished by using some Forced Perspective techniques and then combining multiple pictures at multiple exposures to generate HDR images of them.How stock footage was capturedArc De Triomf, Palace near Placa Espanya, Building Outside Onix: Shots were taken at different exposure settings (f-stop and ISO) using a tripod. View outside HardRock Cafe Barcelona on July 4th, Gran Via 2 Mall ceiling, The Mies van der Rohe Barcelona Pavilion: Shots taken at different f-stop settings using hand-held camera. Re:publicHouse shots (Beer mug + Chess pieces): Shots taken at the Re:public House using a tripod and props. Camera was placed to view the scene dead on to remove any depth (hence why the table is in the middle of the shot). This created the illusion of the various sized Chess pieces and Beer Mugs looking the same size. Other Material that was used (acquired!)No Photographs were used that were not taken by the team. Beer Mugs and Chess pieces provided care of the Re:public House, Nintendo DS, Gateway laptop, and Mouse care of team members, and the drawers used for the final shot care of Residence Onix.Tools used and HOW?Photoshop CS2 - used to test possible HDR shot outcomesHDRSoft Photomax - used to align images and generate the HDR images from the sets of LDR images. In most cases, automated output was correct. In the cases where automated output was incorrect, the Photomax "Advanced Align" tools were used as well as tampering with Black and White Points in output HDR images to alter intensities. Code or scripting (include as an attachment OR link)None used.What worked?HDRSoft's Photomax software. The final HDR shot involving the laptop at Onix worked beautifully, giving the full illusion of a larger Nintendo DS and Microsoft Mouse.What was unexpected?The time taken to setup Forced Perspective shots. Over 6 hours was spent just in setup for the various Forced Perspective shots.What did NOT work?The Chess piece shots resulted in blurred images.How would you fix it?As done in the final set of shots, viewing angles and distances were altered to remove the depth blur problems.Thoughts for the future of this effort?Focus on planning of shots and obtain identical objects of different sizes ahead of time. A lot of time was spent finding objects that looked the same but were different sizes. Auto-alignment software is a must, too much time was spent initially trying to align images manually.Other detailsNone.DocumentationCreation of the Beer Mug and Chess piece shots:Dead on shots (all but angled shot with Queen in the background and Rook + Pawn in the foreground):The pieces were placed into position with the camera looking dead on to the table. This removed all depth due to the table's surface, however, it introduced blur that reflected the actual depth of the items. Angled Chess Piece shot: The goal of this shot was to make the Pawn look as large as a Rook. This was accomplished by placing the Rook a few inches behind the pawn. The pawn was then elevated using Checkers pieces. The camera was placed at an angle and the image was taken. The following image shows the elevated pawn as used in the final shot:  Final Shots at Onix: The purpose of these shots was to create the illusion of larger objects: a larger Nintendo DS and two identical 20 dollar bills in which one looked bigger than the other. This was accomplished by using the drawers in Onix. One was elevated above the other, the camera was aligned to remove the edge between them, and the shots were taken. Lighting was a problem since shadows cast in the direction of the edge between the shelves would make the image look fake. This was corrected by using lights to force shadows to cast out towards the sides of the shelves and not between them. The following video shows how the shelves were elevated: P1010001.MOV
|